Printing device.



J. S. DUNCAN.

PRINTING DEVICE.

APPLICATION FILED MAY7,1910.

2 1 9 1 4 1 y a M d e t n Du lu a P K m n m 0 b D 0 O 7 M r I Dv ,9 0 EIf 0. D v a :0 d

' a K W5 UNITED STATES PATENT OFFICE.

JOSEPH S. DUNCAN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 ADDRESSOGRAQPHCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PRINTING DEVICE.

Specification of Letters Patent.

Patented May 14, 1912.

To all whom it may concern:

Be it' known that I, JOSEPH S. DUNCAN, a citizen of the United States,residing at- Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Printing Devices, of which thefollowing isa specification.

This invention relates to that class of printing devices which comprisea printing form and are adapted to be stored in accordance with a cardindex system or stacked in a' pile. Sometimes these printing deviceshave embodied therewith a card bearing an impression of the printingform, or other information, but this card is not always required and itis desirable for commercial reasons to provide a printing device ofsmall size adapted to be arranged in accordance with a card index systemand so that a greater number may be stored within a given space.

My invention has for its object, therefore, to provide a printing deviceof small size and simple and strong construction adapted to be stored inaccordance with a card index system and to resist all tendency to bendor break while the type characters are being stamped therein and Whileit is being used in the addressing machine, or handled in packing,shipping, or at other times.

In the accompanying drawing illustrating the invention Figure 1 is afront elevation of a printing device embodying the invention. Fig. 2 isan enlarged sectional view on the line 2-2 of Fig. 1. Fig. 3 is a backview of the device.

' The rinting device is made out of a single s eet of metal andcomprises a printing plate section 4 in which the type characters 5 arestamped or pressed by any suitable means. The ends of the sheet are bentto form spacing flanges 6 at the back of the device and between thesespacing flanges both the upper and lower edges of the sheet are turnedinwardly upon the front of the sheet to provide strengthening andstiffen ing beads 7. Both of these beads are preferably made wider thanan ordinary head to provide greater strength for the device. Each of theheads is preferably made in 7 loop form with its ed e 8 pressed againstthe printing plate section. The beads are preferably elevated somewhatabove the plane of the type to additionally protect the face of the typewhen the devices are stored or stacked. An index tab 9 is cut or stampedout of the printing plate section and bent upward at the back of thedevice to project above the upper edge of the device. This index tab maybe arranged in any position between the ends of the device as requiredfor index purposes.

My improved rinting plate is simple in form and of sma 1 size so that agreat number may be stored within a given space. The sheet may be madecomparatively thin because the spacing flanges strengthen ittransversely and the beads strengthen it longitudinally. The two beadsextending from end to end of the device at its u per -or lower edges,especially in the form i lustrated, provide a strong and substantialprint-ing device which is adapted to stand all ordinary strains ofhandling and use.

What I claim and desire to secure by Letters Patent is:

1. A rinting plate consisting of a single sheet 0 metal having printingcharacters stamped up therefrom on one side, opposite edges of saidsheet being bent to form spacing flanges, each spacing flange having apart extending from the sheet at substantially right angles thereto, andanother art extending inwardl from the outer en of the first mentioneart in substantial parallelism with the p ate and spaced therefrom, andthe other opposite edges of the sheet between the spacing flanges beingbent to form stifl'ening beads.

2. A printing plate consisting of a single sheet of metal havingprinting characters stamped up therefrom on one side, the opposite edgesof said sheet being bent at substantially right angles to the sheet andthence inwardly to form spacing flanges, and the other opposite edges ofthe sheet between said spaclng flanges being bent to form heads at theto and bottom of the sheet, and an index tali stamped wholly out of thesheetbelow the upper bead and bent to project above said head.

JOSEPH S. DUNCAN.

Witnesses:

WM. 0. BELT, M. A. Kmom.

